Make all future connections persistent (auto-reconnect at login) NET USE /Persistent:Yes
or
NET USE /P:Yes

Make all future connections non-persistent (reconnect with login script) NET USE /Persistent:No
or NET USE /P:No

Join a file share (Drive MAP) - with a long share name NET USE [driveletter:] "\\ComputerName\ShareName"

Connect a user to their HOME directory NET USE [devicename | *] [password | *]] [/HOME]
This requires the users Home server/folder to be defined in AD

In a script, to map a drive and wait until the mapping has completed before continuing:START /wait NET USE [driveletter:] \\ComputerName\ShareName
This will be a little slower, but ensures that files can be read from the mapped drive.